نتایج جستجو برای: storage ring
تعداد نتایج: 303637 فیلتر نتایج به سال:
We describe a scheme by which the nonlinear eld contents of a storage ring can be estimated from the measured acceptance variation near low-order resonances. The method is applied to the KEKKATF damping ring in an attempt to understand its small dynamic aperture. Abstract We describe a scheme by which the nonlinear field contents of a storage ring can be estimated from the measured acceptance v...
A fourth-harmonic Landau radiofrequency (RF) cavity suppresses coupled bunch instabilities and increases the beam lifetime of the Aladdin electron storage ring. When the storage ring is operated with a small momentum compaction, instabilities limit the utility of the Landau cavity. Analytic modeling and simulations suggest that instabilities result from fast mode-coupling between the dipole a...
The synchrotron radiation facility NewSUBARU has been constructed in SPring-8 site and user experiments have been started since February 2000. The 1.5 GeV electron storage ring with circumference of 119m produces soft X-ray synchrotron radiation. The present status of the storage ring and the facility is presented.
Introduction The storage ring complex is an important part of the FAIR project. Experiments with antiprotons and with highly charged heavy ions stable and unstablewill be performed at the different storage rings. Furthermore, the storage rings supply the FLAIR complex with low energy antiproton and ion beams. Since the release of the Conceptual Design Report (CDR) [1] the FAIR project has under...
The Swiss Light Source (SLS) at the Paul Scherrer Institute (PSI) consists of a turn key 100 MeV linac, a novel type of booster synchrotron and a 12-TBA storage ring providing 5 nm·rad natural emittance at 2.4 GeV. The SLS project was approved by Swiss Government in Sept. 1997. By June 1999 the building was finished. Linac and booster commissioning concluded by April, resp. Sept. 2000. First be...
Currently, there is a much interest in making precision measurements utilizing storage rings [1]. For example, the Muon g-2 experiment at Fermilab [2] and the Electric Dipole Moment (EDM) program of the JEDI Collaboration [3] require measurements of sub-ppm precision. Of particular importance is the ability to treat all nonlinear effects arising from detailed field distributions, including frin...
Measurements on the energetic structure of the dissociative recombination rate coefficient in the millielectronvolt range are described for H3+ ions produced in the lowest rotational levels by collisional cooling and stored as a fast beam in the magnetic storage ring TSR (Test Storage Ring). The observed resonant structure is consistent with that found previously at the storage ring facility CR...
The dissociative recombination (DR) of H(3)(+) is a key process in interstellar chemistry. More than 30 experimental studies of the DR process have been published in the literature. The H(3)(+) DR rate coefficient results obtained from these measurements, however, have not always been consistent. The outcome seems to depend on the experimental method, on the exact measurement procedure and some...
We theoretically investigate an adjustable-radius magnetic storage ring for laser-cooled and Bose-condensed atoms. Additionally, we discuss a novel time-dependent variant of this and other ring traps. Time-orbiting ring traps provide a high optical access method for spin-flip loss prevention near a storage ring’s circular magnetic field zero. Our scalable storage ring will allow one to probe th...
Underwater wireless sensor networks (UWSNs) represent an area of increasing research interest, as data storage, discovery, and query of UWSNs are always challenging issues. In this paper, a data access based on a guide map (DAGM) method is proposed for UWSNs. In DAGM, the metadata describes the abstracts of data content and the storage location. The center ring is composed of nodes according to...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید